SW006013 Microchip Technology, SW006013 Datasheet - Page 188

• Manufacturer Part Number: SW006013
• Description: MPLAB C Compiler For DsPIC DSCs
• Manufacturer: Microchip Technology
• Series: DsPIC30F/33Fr
• Type: MPLAB® C Compilerr

Specifications of SW006013

• Supported Families: DsPIC30F, DsPIC33F
• Core Architecture: DsPIC
• Kit Contents: Software And Docs
• Mcu Supported Families: DsPIC30F And DsPIC33F
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: dsPIC
• Lead Free Status / RoHS Status: na
• For Use With/related Products: dSPIC DSCs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS51456E-page 184
sqrt
Description:
Include:
Prototype:
Argument:
Return Value:
Remarks:
Example:
Calculates the square root of a double precision floating-point value.
<math.h>
double sqrt(double x);
x
Returns the non-negative square root of x..
If x is negative, a domain error occurs.
#include <math.h>
#include <stdio.h> /* for printf, perror */
#include <errno.h> /* for errno
int main(void)
{
}
Output:
The square root of 0.000000 is 0.000000
The square root of 9.500000 is 3.082207
Error: domain error
The square root of -25.000000 is nan
double x, y;
errno = 0;
x = 0.0;
y = sqrt (x);
if (errno)
printf("The square root of %f is %f\n\n", x, y);
errno = 0;
x = 9.5;
y = sqrt (x);
if (errno)
printf("The square root of %f is %f\n\n", x, y);
errno = 0;
x = -25.0;
y = sqrt (x);
if (errno)
printf("The square root of %f is %f\n\n", x, y);
perror("Error");
perror("Error");
perror("Error");
a non-negative floating-point value
/* for sqrt
© 2008 Microchip Technology Inc.
*/
*/